Rob Kardashian has shunned all his sisters, save for the youngest one. The lone Kardashian brother has unfollowed – and has since re-followed – Kim, Kourtney, Khloe Kardashian and Kendall Jenner on Twitter, while keeping in contact only with Kylie and their mum Kim Jenner.

The 27-year-old sock designer appeared to be making a strong statement against his family by unfollowing most of them on the micro media social site on Wednesday.

The only family he still followed were 16-year-old Kylie, the youngest of the family, and their mum, Kris.

He has since re-followed all his sisters.

It is unknown what prompted the move.

Rob made tabloid headlines in late May after abruptly skipping Kim and Kanye West’s wedding in Florence, Italy. According to reports, he was spotted in tears trying to book a flight back to Los Angeles on Saturday morning, hours before Kim and Kanye were due to exchange vows.

TMZ cited sources claiming that Rob was upset after he was being forced to pose for family photos. After hiding from the public eye for months, he reappeared recently looking bigger than ever, which made him insecure and depressed about his appearance.

Another report from X17Online.com alleged that Rob got into a fight with the bride herself. Kim reportedly wanted all the men in their family to wear designer Valentino suits for the pre-wedding lunch with Valentino, but Rob couldn’t fit in any of the suits because of his recent gain weight.

Kim was said to be pissed that Rob hadn’t made effort to lose weight before her big day, and Rob was hurt that Kim only cared about appearances.

Another theory presented by The Hollywood Gossip claimed that Rob’s beef was with Khloe. Rob, who used to live with Khloe and ex-husband Lamar Odom in their home, apparently reached out to Lamar after Kimye’s wedding to ask him for help on personal problems.

Khloe didn’t approve of Rob and Lamar’s friendship, though, and made it clear to her brother.

In what seemed to be an attempt for a fresh start, Rob has recently deleted all his Twitter posts and just left a few bible verses.